Delta EB3000 Series User Manual page 351

Chapter 9 Warning and Fault CodesEB3000
Use special motor or motor
with larger capacity than
the drive
V/F curve setting error in
the IM open-loop circuit
control
Incorrect use of the control
mode with motor
Hardware failure
Abbreviated
ID No.
Fault Code
3 ocn
Action condition
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
Poor insulation of the wiring
between the U/V/W
terminals and the motor
Check for possible burnout
or aging insulation of the
motor
Shaft lock occurs on the
motor or transmission
devices related to the
elevator door
Use special motor or motor
with larger capacity than
the drive
V/F curve setting error in
the IM open-loop circuit
control
Hardware failure
Abbreviated
ID No.
Fault Code
4 GFF
Action condition
Action time
Check the motor capacity (the rated current on the motor's nameplate should ≤ the
rated current of the drive)
Adjust the V/F curve setting (Pr.03-51–Pr.03-56) and frequency/voltage. If error
occurs, the frequency voltage corresponding to the output frequency will be too high,
then, at this time, reduce the voltage.
Check for the settings for Pr.00-01 control mode:
For PM, set Pr.00-01 = 3
For IM, set Pr.00-01 = 0–2
The ocd occurs due to the short circuit at the output side of the drive. Check for
possible short circuits between the U/V/W terminals with the electric meter. If short
circuits exist, return to the factory for repair.
Display on
Fault Name
KPED-LE02
Over-current during
constant speed
Action and Reset
300% of the drive's rated current
Time that triggers a second time of over-current is shorter than 30 ms
PWM temporarily stops outputting for 30 ms, and then continues to output normally. If
time that hardware triggers a second time of over-current is shorter than 30 ms, PWM
stops outputting.
Manual reset
5 seconds after output current is smaller than 37.6% of rated current
Yes
Check for possible poor insulation of the wiring between the U/V/W terminals and the
motor.
Check the motor insulation value with megger. Replace the motor if the insulation is
poor.
Check for possible shaft lock on the motor or transmission devices related to the
elevator door.
Check the motor capacity (the rated current on the motor's nameplate should ≤ the
rated current of the drive)
Adjust the V/F curve setting (Pr.03-51–Pr.03-56) and frequency/voltage.
The ocn occurs due to the short circuit at the output side of the drive. Check for
possible short circuits between the U/V/W terminals with the electric meter. If short
circuits exist, return to the factory for repair.
Display on
Fault Name
KPED-LE02
Ground fault
Action and Reset
60% of the drive's rated current
Time that triggers a second time of over-current short to ground is shorter than 30 ms
Output current exceeds three times the drive's
rated current during constant speed.
Corrective Actions
When (one of) the output terminal(s) is
grounded and a current short to ground
exceeds 50% of drive's rated current, GFF
occurs.
NOTE: the short circuit protection is provided
for drive protection, not to protect the user.
9-20
Description
Description
<Go to List of Fault Codes>